Acoustic Series
Soundproof Aluminum Exterior Hinged Doors
Full view modern entry design with ultra-slim profile framing and multi-cavity acoustic seals ideal for apartment balcony & back access.
Featured Product Portfolio
High-Performance Custom Aluminium Back Door Systems
Engineered for residential, commercial, villa, and high-rise applications. Certified to international safety, thermal, and wind-load performance benchmarks.
Weather-Proof
Anti-Backflow Weatherproof Folding Door
Engineered with high-water head drainage sills to prevent reverse water ingress during severe storm surge conditions.
Automatic Sliding
AUMEGI Automatic Low-E Patio Sliding Door
Back-painted metal finish with smart automated sliding gear, Low-E double glazing, and integrated heavy-duty main handle.
Minimalist Frame
Ultra-Narrow Slim Casement Back Door
Minimalist narrow-frame aluminum casement design tailored for luxury kitchen exits, utility doors, and modern interior transitions.
Heavy-Duty Fireproof
KDC-50 Heavy Duty Fireproof Commercial Door
Equipped with soft overhead hydraulic transom closers, reinforced alloy frames, and fire-resistant core materials for commercial utility exits.
Accordion System
ZS Chinese Modern Accordion Bi-Fold Patio Door
Multi-panel folding door system offering max clear opening width for courtyard backdoors, residential garden patios, and sunrooms.
Double Glazed
Double-Glazed Villa Back Entrance Door
Architectural narrow-frame casement system optimized for villa kitchen exits, damp environments, and perimeter security enhancement.
Security Gate
DERCHI Armor Security Entrance Gate Door
High-tensile extruded aluminum front & back security door featuring multi-point deadbolts, reinforced hinges, and weather-seal barriers.
15+
Years Industry Experience
10,000㎡
Standardized Plant Facility
6+
Global Product Certifications
100%
Full-Process Quality Inspection
Engineering Whitepaper & Technical Standards
Architectural Specifications for Custom Aluminium Back Door Systems
In modern architectural engineering, exterior back doors are no longer secondary utility access points. They represent critical structural nodes in a building’s thermal envelope, air tightness matrix, physical security perimeter, and weatherproofing barrier. Selecting an OEM/ODM manufacturing partner in Foshan—China’s architectural extrusion hub—requires deep technical evaluation of profile alloys, thermal break insulation strips, hardware load capacity, and international fenestration testing compliance.
- Extrusion Alloy Standard: Primary 6063-T5 / T6 architectural grade aluminum alloy with nominal wall thicknesses ranging from 1.6mm to 3.0mm according to structural wind load calculations.
- Thermal Insulation Technology: Technoform PA66-GF25 (25% glass-fiber reinforced polyamide) thermal break strips preventing thermal bridging and condensation in cold and hot climate zones.
- Surface Finish Options: Qualicoat-certified AkzoNobel powder coating, fluorocarbon (PVDF) 3-coat spraying for harsh coastal environments, and anodized finishes (15µm to 25µm film thickness).
- Glazing Systems: Tempered safety glass conforming to EN 12150, US SGCC, and AS/NZS 2208 standards, available in double/triple Low-E insulated glass units (IGU) with warm-edge spacers.
Core OEM/ODM Manufacturing Capabilities
Karon Window & Door Co., Ltd. provides end-to-end B2B customized door solutions, bridging architectural shop drawings with industrial-grade manufacturing accuracy.
1
Custom Profile Tooling & Dies
Custom die design for proprietary architectural extrusions with fast 15-day sample extrusion turnarounds.
2
Precision CNC Machining
4-axis CNC milling centers guaranteeing lock slot tolerances within ±0.1mm for German and Italian hardware integration.
3
Hydraulic Corner Crimping
Dual-component corner sealant injection with heavy hydraulic crimping for absolute structural rigidity and water tightness.
Strategic Market Insights
Future Procurement Trends in Aluminium Back Door Systems
Key technological shifts and regulatory imperatives shaping global fenestration sourcing over the next decade.
1. Ultra-Narrow Sightlines & Hidden Frame Engineering
Architectural demand is rapidly moving toward minimal visible aluminum sightlines (15mm to 25mm interlocking stiles). Advanced back door systems utilize structural silicone glazing (SSG) technology where the glass unit bears part of the structural wind load, allowing slimmer profiles without sacrificing frame deflection thresholds.
2. Decarbonization & Low-Carbon Aluminum Extrusions
Strict European Energy Performance of Buildings Directives (EPBD) and US LEED v4.1 certifications require B2B buyers to procure back doors manufactured with hydro-powered or recycled low-carbon aluminum billets. Recycled aluminum consumes 95% less energy than primary production, significantly lowering embodied carbon metrics.
3. Biometric & Smart Access Control Integration
OEM back doors are transitioning from traditional mechanical cylinder locks to motorized multi-point electronic locksets. Systems now feature integrated facial recognition, fingerprint readers, encrypted keypad entry, and automated motorized drop-down perimeter weather seals activated upon door closure.
4. Hurricane Impact & Extreme Weather Resilience
Global climate volatilization has expanded coastal Florida (TAS 201/202/203) impact-resistance demands into Southeast Asia, Australia, and Mediterranean resorts. Back doors now incorporate heavy-gauge steel reinforcements, laminated SentryGlas® interlayers, and anti-lift hidden hinge assemblies.
Comparative Technical Matrix
Engineering Benchmarks Across Back Door Configurations
Evaluation parameters designed to assist structural engineers, procurement directors, and project architects in system selection.
| System Type | Thermal U-Factor (W/m²K) | Water Tightness (Pa) | Acoustic Rating (STC / Rw) | Wind Pressure Rating (Pa) | Optimal Project Application |
|---|---|---|---|---|---|
| Thermal Break Slim Casement | 1.4 - 1.8 | 600 Pa (Class 9A) | 38 - 42 dB | Up to 4500 Pa | Luxury Residential Villas, High-End Entry Exits |
| Anti-Backflow Folding System | 1.8 - 2.2 | 750 Pa (High-Water Sill) | 35 - 38 dB | Up to 3500 Pa | Coastal Patios, Flood-Prone Resort Walkways |
| Heavy Duty Lift & Slide Door | 1.5 - 1.9 | 500 Pa | 36 - 40 dB | Up to 4000 Pa | Panoramic Garden Terraces, Wide Openings |
| Commercial Hydraulic Fire Door | 2.2 - 2.5 | 300 Pa | 32 - 35 dB | Up to 3000 Pa | Hotel Service Exits, Utility Rooms, Fire Stairs |
| Minimalist Non-Thermal Casement | 3.2 - 3.8 | 250 Pa | 28 - 32 dB | Up to 2000 Pa | Interior Kitchen Partitions, Warm Climate Exits |
Why Partner With KARON
15+ Years of Export Manufacturing Excellence in Foshan
Delivering project-grade architectural window & door solutions backed by rigorous certified production standards.
Strict Quality Control Protocol
Every profile extrusion, thermal bridge insertion, double-glazed unit, and hardware component undergoes systematic 100% full-process dimensional, scratch, and seal integrity inspection prior to container packing.
International Testing Certifications
Fully compliant with global building codes: European CE (EN 12150), US SGCC Safety Glazing, Australia AS 2208, New Zealand AS/NZS 2208, Thailand TISI 965-2560, and Malaysia CIDB PPS certification.
Global Project Proven Track Record
Supplying multi-unit resort developments and luxury private residences worldwide, including the 672-unit Kora Beach Resort Phuket, Texas Luxury Residence (USA), Azure Blue Residence (Greece), and Les Jardins (France).
Frequently Asked Questions
OEM/ODM Aluminium Back Door Sourcing Guide
Detailed technical answers for real estate developers, general contractors, importers, and fenestration distributors.
What is the typical lead time for custom OEM/ODM back door orders? +
Standard lead time for customized orders is 25 to 35 calendar days following shop drawing approval and deposit receipt. For standard stock profile colors (Black, Dark Gray, Powder White), production can be accelerated to 20 days. If custom extrusion mold tooling is required, add 12 to 15 days for die fabrication and aluminum sample verification.
How do you ensure water-tightness on exterior back doors during heavy rain storms? +
Our engineered back door systems utilize continuous EPDM triple-seal gasket weatherstripping combined with pressure-equalized drainage cavities. For flush-threshold applications, we offer patented hidden water-barrier sub-sills with anti-backflow check valves tested to withstand continuous water pressure up to 750 Pa without water penetration into interior floor finishes.
What hardware brands do you integrate into your door manufacturing? +
We offer full flexibility based on project specs. Standard configurations feature premium custom KARON stainless steel hardware (304/316 grade). For architectural projects specifying European brands, we seamlessly integrate German Siegenia, HOPPE, G-U, ROTO, and Italian GIESSE multi-point locking gear into our CNC-machined profile cavities.
Can your aluminum back door systems meet local building energy codes (e.g., California Title 24, European CE)? +
Yes. By incorporating Technoform polyamide thermal break strips (PA66-GF25) and argon-filled, double or triple Low-E glazed units with warm-edge spacers, our door assemblies achieve total system U-values as low as 1.4 W/m²K (U-factor ~0.24 BTU/h·ft²·°F), satisfying strict international energy conservation codes.
What packaging and protection methods are used for international sea transport? +
All door frames and sashes undergo a 5-layer protective packing process: 1) Protective film over aluminum surfaces; 2) Corner guard edge protection; 3) Bubble wrap cushioning; 4) Waterproof polyethylene shrink wrapping; 5) Fully enclosed fumigated plywood crates or rigid steel A-frames for LCL and FCL ocean shipping.
What is your minimum order quantity (MOQ) for custom project sourcing? +
We support flexible procurement: for standard profile series, our MOQ is 30 square meters or 10 set units (ideal for villa projects). For custom extrusion profile development, the initial tooling MOQ is 1.5 metric tons of aluminum extrusions, with mold fees fully refundable once order volume reaches agreed contract thresholds.
Do you provide shop drawings and technical structural calculations prior to production? +
Yes. Our in-house engineering team of 15+ fenestration specialists produces detailed CAD elevation drawings, cross-sectional profiles, floor connection details, and structural wind load calculation reports for architectural review and client sign-off before raw material cutting begins.
How can overseas buyers verify factory compliance and product certifications? +
We welcome third-party factory audits (SGS, TÜV, Intertek) and provide verifiable test report certificates with unique license registration numbers for CE EN 12150, US SGCC, Australia AS 2208, and ISO 9001 quality management systems. Live video factory tours can also be scheduled with our engineering directors.
Ready to Engineer Your Architectural Back Door Project?
Send your CAD drawings, door schedules, or performance specifications to our engineering team in Foshan. Get competitive direct factory pricing and technical feasibility analysis within 24 hours.
